THE CLIMATE OP MONTANA 



FROST DATA FOR MONTANA 



Stations — Counties 



Length of 

 Record 

 Years 



Average Date 



last killing 



frost in 



spring 



Average Date 



first killing 



frost in 



autumn 



Adel, Cascade 23 



Agric. Col., Gallatin 28 



Anaconda, Deer Lodge 21 



Augusta, Lewis & Clark 22 



Biddle, Powder River „ 14 



Big Timber, Sweet Grass 15 



Billings, Yellowstone 26 



Bowen, Beaverhead 15 



Brenner, Beaverhead 8 



Browning, Glacier 12 



Butte, Silver Bow 28 



Cascade, Cascade 17 



Chester, Liberty 17 



Chinook, Blaine 25 



Choteau, Teton 14 



Circle, (near McCone 20 



Crow Agency, Big Horn 40 



Cut Bank, Glacier 13 



Deer Lodge, Powell 16 



Denton, Jbergus 13 



Dillon, Beaverhead 23 



Ekalaka, Carter 20 



Findon, Meagher 9 



Fort Benton, Chouteau 28 



Fortine, Lincoln 15 



Fort Shaw, Cascade 21 



Glasgow, Valley 26 



Glendive, Dawson 32 



(Joldbutte, Toole 14 



Great Falls, Cascade 29 



Hamilton, Ravalli . 22 



Harlowton, Wheatland 17 



Haugan, Mineral 14 



Havre, Hill 40 



Hebgen Dam, Madison 18 



Helena, Lewis & Clark 42 



Heron, Sanders 10 



Holter, Lewis & Clark 19 



Jordan, Garfield ". 14 



Kalispell, Flathead 23 



Lewistown, Fergus ,.. 22 



Libby, Lincoln 27 



Livingston, Park 20 



Malta, Phillips 15 



Medicine Lake, Sheridan 11 



Miles City, Custer 29 



Missoula, Missoula 31 



Ovando, Powell 22 



Phillipsburg, Granite 17 



Plevna. Fallon 9 



Poison, Lake 15 



Poplar, Roosevelt 36 



Red Lodge, Carbon 22 



Renova, Jefferson 24 



Roundup, Musselshell 7 



Saint Ignatius, Missoula 17 



Shelby, Toole 10 



Sidney, Richland 16 



Snowbelt, (near) Garfield 7 



Stevensville, Ravalli 11 



Superior, Mineral 7 



Thompson Falls, Sanders 11 



Three Forks, Gallatin 19 



Upper Yaak River, Lincoln 8 



Utica, Judith Basin 28 



Valentine, Fergus - 15 



Valier, Pondera 10 



Virginia City, Madison 18 



White Sulphur Springs, Meagher 14 



WTiite Water. Phillips 7 



•♦Freezing temperature often occurs every month. 



